Answer:
1) [tex]x=10[/tex]
2) [tex]x=3[/tex]
Step-by-step explanation:
1)
[tex]2x+15=35[/tex]
Subtract 15 from both sides
[tex]2x=20[/tex]
Divide both sides by 2
[tex]x=10[/tex]
[tex]2(10)+15=35[/tex]
[tex]20+15=35[/tex]
[tex]35=35[/tex]
this shows that 10 is the right answer
2)
[tex]7x-3=18[/tex]
Add 3 to both sides
[tex]7x=21[/tex]
Divide both sides by 7
[tex]x=3[/tex]
[tex]7(3)-3=18[/tex]
[tex]21-3=18[/tex]
[tex]18=18[/tex]
this shows that 3 is the right answer
Hope this helps
